Microchip Technology ATSAM4LS4AA-AU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.06 | $6.06 |
| 15+ | $5.87 | $88.05 |
| 25+ | $5.74 | $143.50 |
| 50+ | $5.42 | $271.00 |
| 100+ | $4.79 | $479.00 |
| N+ | $0.96 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | SAM4L |
| Packaging | Tray | |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 48MHz |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| Number of I/O | 32 |
| Program Memory Size | 256KB (256K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 32K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.68V ~ 3.6V |
| Data Converters | A/D 3x12b; D/A 1x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-TQFP (7x7) |
| Package / Case | 48-TQFP |
| ROHS |  |
The Microchip ATSAM4LS4AA-AU is a low-power 32-bit ARM Cortex-M4 microcontroller optimized for signal processing and portable applications. It combines 256KB flash and 32KB SRAM with a 48MHz CPU, plus an I2S interface for audio. Operating from 1.68V to 3.6V, it is ideal for battery-powered devices requiring DSP performance and rich analog integration.
- DSP-capable core: Cortex-M4 with FPU accelerates math-heavy algorithms for audio and sensor processing.
- Ultra-low voltage: 1.68V minimum enables single-cell battery operation.
- Integrated I2S: Simplifies audio codec interfacing without external logic.
- DMA controller: Reduces CPU load during high-speed data transfers.
- Compact package: 48-TQFP saves PCB space for wearable designs.
High-Precision Data Acquisition
The Cortex-M4 core with DSP instructions and 32KB RAM enables real-time digital filtering of sensor signals in vibration analysis or audio capture systems.
Battery-Powered IoT Endpoint
With a 1.68V minimum supply, this MCU can run directly from a single alkaline cell or a Li-ion battery in deep sleep, extending device life in wireless environmental monitors.
Audio Processing Module
The integrated I2S interface and 48MHz core allow for low-latency audio streaming and basic sound processing in voice-controlled smart speakers or hearing aids.
Portable Instrumentation
Its low power consumption and DMA support make it suitable for handheld multimeters or oscilloscopes that require continuous sampling and fast data throughput.
Medical Wearable Patch
The small TQFP package and wide voltage range support compact, skin-safe designs for continuous ECG or glucose monitoring with on-device signal conditioning.
Industrial Process Controller
PWM outputs and brown-out detection ensure reliable control of valves or pumps in chemical plants, with the -40°C to 85°C range covering most factory floors.
- Q: What core does the ATSAM4LS4AA-AU use?
- A: It uses an ARM Cortex-M4 processor.
- Q: What is the maximum clock speed?
- A: The CPU runs at up to 48MHz.
- Q: How much flash memory is available?
- A: It has 256KB of flash memory.
- Q: What is the supply voltage range?
- A: It operates from 1.68V to 3.6V.
- Q: What package is this device offered in?
- A: It comes in a 48-TQFP package.
ATSAM4LS4AA-AU.pdf
- Q: What core does the ATSAM4LS4AA-AU use?
- A: It uses an ARM Cortex-M4 processor.
- Q: What is the maximum clock speed?
- A: The CPU runs at up to 48MHz.
- Q: How much flash memory is available?
- A: It has 256KB of flash memory.
- Q: What is the supply voltage range?
- A: It operates from 1.68V to 3.6V.
- Q: What package is this device offered in?
- A: It comes in a 48-TQFP package.
